Hinckley



G. W. HINCKLEY.

lmpravement in4 Stage-Machinery.

N0. 129,227. y Patented July 16,1872- "UNITED STATES PATENT OEEIOE.'

GEORGE WASHINGTON HINCKLEY, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN STAGE MACHINERY.

Specification forming part of Letters Patent o. 129,227, dated July 16, 1872.

SPEOIEIOATION.

I, GEORGE WASHINGTON HmOKLEY, in the city and county of Sau Francisco, State of California, have invented certain Improvements for the purpose of producing on the stage the rolling, pitching, and sinking of a ship, of which the following is a specication:

Nature and Objects of the Invention.

Description ofthe accompanying Drawing.

Figure 1 is a full and complete view of the mechanism embodying my invention. Fig. 2 is an end View of the machinery and appliances, as more fully seen in Fig. 1.

General Description.

A are the rockers, of which there are three, parallel to one another, of which there is an end View in Fig. 2. B is a platform cut out of the stage to represent the deck `of the ship. Two of the rockers A pivot on two frames, C C C C, which are set in two upright end-sloats at either end D D, and are raised and lowered by means of a shaft, E, with ropes H H H attached and running through uprights F F F, with sheaves I I I at the' top connecting with shaft E. The shaft is worked by meansof a crank, G. K is a center-hinge to keep the rockers in their places during the workin g of the machinery. This constitutes the machinery for raising or sinking the platform on which is built the vessel. The rolling motion of the ship or platform on which is built the vessel is eected by simply reversing the ropes H H H on the shaft E, so that when one side is raised by working the crank G, the other side will be correspondingly lowered. The ropes are to be reversed only after having elevated the platform B to its required height.

The machinery to eifect the pitching motion Y consists of loose sloats M M, of which there are four, two at each end, bolted to the end of rockers A.V At the end of each sloat are attached ropes N N, which run through sheaves O O at the head of uprights D D. 'lhese ropes connect with two drums, P P, worked by cranks Q Q at either end. By raising one crank the same time that the other is lowered the pitching mot-ion is effected. On platform B rests a device, R, of any kind, to represent the bulwarks of a ship or vessel, constructed of canvas and hanging down to the line of the stage L L L L, concealing from view the Whole of the machinery worked above the stage, as is better seen in the model.A

Claim.

I claim as my invention the mechanical combination above described, for the purpose of eecting on a stage the raising, sinking, rolling, and pitching of a'vessel.

GEORGE WASHINGTON HINCKLEY.

Witnesses:

PAUL I. ROBERTS, FRANK B. GILLET. 

